The invention relates to a manual closing and locking device structure of a spring operating mechanism and a working principle of the manual closing and locking device structure, and aims at solving the technical problem that existing similar products are difficult to thoroughly solve the problem of interlocking defects during manual closing and locking. The manual closing and locking device is characterized in that the other end of a connecting rod of the manual closing and locking device is connected to an output connecting lever of an output shaft, and the output shaft is provided with an interlocking crank arm; the tilting end of the interlocking crank arm abuts against the closing interlocking plate, and a lower sliding hole is formed in one end of the closing interlocking plate, anda positioning pin shaft is arranged in the lower sliding hole; the other end of the closing interlocking plate abuts against one end of the closing pushing plate, and the closing interlocking plate atthe abutting part is provided with an upper sliding hole; a positioning pin shaft is arranged in the upper sliding hole, and the other end of the closing push plate is connected to one end of the closing transition button, and is provided with a torsion spring; the other end of the switch-on transition button is connected with the switch-on button, and a reset spring is arranged at the joint of the switch-on transition button and the switch-on button, and the closing transition button is arranged in the fixing seat of the right side plate. Accordingly, the output shaft drives the interlockingcrank arm to rotate so as to drive the closing interlocking plate to move up and down.